Camera Module With Rim Guides For Reduced Bezel Volume
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Solution Overview
Problem
The challenge is to minimize the bezel portion in mobile terminals to increase the display area while accommodating electronic components, as reducing the bezel's volume is limited by the presence of multiple components.
Innovation Solution
A camera device is designed with a modified shape to be positioned beneath the bezel portion, featuring a pair of flat surfaces and curved surfaces in the rim guides, with lens portions and an image sensor, utilizing guide grooves and protrusions for alignment and assembly, allowing for a thinner profile and reduced weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the bezel portion is reduced to increase display area, then the display area is enlarged, but the camera device cannot be properly accommodated
Solution Approach 1:
The camera device is repositioned from the traditional side-mounted location to a space beneath the bezel portion, utilizing the thickness dimension of the terminal body. This dimensional relocation allows the camera module to be accommodated without increasing the lateral footprint of the bezel, thereby enabling both a reduced bezel area and proper camera accommodation.
2Volume of moving object
If the camera device volume is reduced to fit beneath the bezel, then the bezel can be reduced, but the camera functionality is compromised
Solution Approach 1:
The camera device is nested within the terminal body's internal space beneath the bezel portion. The lens portions and image sensor are arranged in a compact stacked configuration, with the lens assembly positioned above the image sensor in the thickness direction. This nesting approach minimizes the camera device's lateral footprint while maintaining all essential camera components and their functional relationships.
Solution Approach 2:
The camera device utilizes the thickness dimension of the terminal body for its primary spatial arrangement. By orienting the lens and image sensor along the thickness direction rather than spreading them out laterally, the camera achieves adequate functionality within a compact volume that fits beneath the reduced bezel.
3Manufacturing precision
If additional alignment steps are added to achieve accurate focal length, then the focal length precision is improved, but the manufacturing complexity increases
Solution Approach 1:
The rim guides are pre-formed with integrated guide grooves and protrusions during the molding process. These alignment features are built into the lens holder and camera device components before assembly, establishing precise relative positions of the lens portions and image sensor in advance. This preliminary formation of alignment features eliminates the need for complex post-assembly adjustment steps to achieve accurate focal length.
Solution Approach 2:
The guide grooves and guide protrusions on the rim guides provide self-aligning functionality during assembly. When the lens holder and camera device are brought together, the complementary guide features automatically guide the components into their correct relative positions, ensuring accurate focal length without requiring external alignment tools or complex adjustment procedures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration minimizes the thickness of the bezel portion, reduces the volume and weight of the camera device, and enables more accurate focal length adjustment without additional steps, leading to lower power consumption for autofocus driving.
Implementation Method 1
The plurality of rim guides include guide grooves and/or guide protrusions, respectively, rotatably inserted into the adjacent rim guides
Implementation Method 2
a plurality of lens portions formed within the plurality of rim guides, respectively, and forming a specific focal length
Data Source
AI summary
An electronic device includes a display unit, a bezel portion, and a camera module disposed beneath the bezel portion and provided with a pair of flat surfaces facing each other, wherein the camera module includes a plurality of rim guides each including first and second flat surfaces facing each other, and first and second curved surfaces connecting the first and second flat surfaces, the plurality of rim guides being laminated with forming spaces apart from one another, a plurality of lens portions formed within the plurality of rim guides, respectively, and forming a specific focal length, and an image sensor overlapping the plurality of lens portions and generating an image using light that has passed through the plurality of lens portions.